1
|
Yang R, Ye H, Sun N, Wu Z, Liu Y, Liu W. Unveiling the Mechanism of Spontaneous Nanoscroll Formation from Janus Transition Metal Dichalcogenide Nanoribbons. ACS APPLIED MATERIALS & INTERFACES 2024; 16:43860-43868. [PMID: 39105733 DOI: 10.1021/acsami.4c09662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
Due to the atomic asymmetry, Janus transition metal dichalcogenide monolayers possess spontaneous curling and can even form one-dimensional nanoscrolls. Unveiling this spontaneous formation mechanism of nanoscrolls is of great importance for precise structural control. In this paper, we successfully simulate the process of Janus MoSSe nanoscroll formation from flat nanoribbons, based on molecular dynamics (MD) simulations with hybrid potentials. The spontaneous scrolling is purely driven by the relaxation of intrinsic strain in Janus MoSSe. The final structure of nanoscroll is strongly affected by the length of nanoribbon with a nonmonotonous relation. To further understand the mechanism, we establish a thermodynamic model to determine the inner radius of MoSSe nanoscrolls, which is shown to be related to spontaneous curvature, bending stiffness, interlayer van der Waals interaction, interlayer distance, and length of initial nanoribbon. The results correspond well with MD simulations of nanoscrolls from flat nanoribbons and the molecular static simulations of directly built nanoscrolls. Moreover, the inner radii of MoSeTe and MoSTe nanoscrolls are predicted based on the model. Our results provide insights into the Janus TMD nanoscroll formation and a pathway for controllable fabrication of nanoscrolls.
Collapse
Affiliation(s)
- Ruhao Yang
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - Han Ye
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - Naizhang Sun
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - Zhenping Wu
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - Yumin Liu
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - Wenjun Liu
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
| |
Collapse
|
2
|
Chen L, Yu X, Chen W, Qiu F, Li D, Yang Z, Yang S, Lu S, Wang L, Feng S, Xiu P, Tang M, Wang H. Nanoscale detection of carbon dots-induced changes in actin skeleton of neural cells. J Colloid Interface Sci 2024; 668:293-302. [PMID: 38678885 DOI: 10.1016/j.jcis.2024.04.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 04/08/2024] [Accepted: 04/22/2024] [Indexed: 05/01/2024]
Abstract
Understanding the cytotoxicity of fluorescent carbon dots (CDs) is crucial for their applications, and various biochemical assays have been used to study the effects of CDs on cells. Knowledge on the effects of CDs from a biophysical perspective is integral to the recognition of their cytotoxicity, however the related information is very limited. Here, we report that atomic force microscopy (AFM) can be used as an effective tool for studying the effects of CDs on cells from the biophysical perspective. We achieve this by integrating AFM-based nanomechanics with AFM-based imaging. We demonstrate the performance of this method by measuring the influence of CDs on living human neuroblastoma (SH-SY5Y) cells at the single-cell level. We find that high-dose CDs can mechanically induce elevated normalized hysteresis (energy dissipation during the cell deformation) and structurally impair actin skeleton. The nanomechanical change highly correlates with the alteration of actin filaments, indicating that CDs-induced changes in SH-SY5Y cells are revealed in-depth from the AFM-based biophysical aspect. We validate the reliability of the biophysical observations using conventional biological methods including cell viability test, fluorescent microscopy, and western blot assay. Our work contributes new and significant information on the cytotoxicity of CDs from the biophysical perspective.
Collapse
Affiliation(s)
- Ligang Chen
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; Chongqing School, University of Chinese Academy of Sciences, Chongqing 400714, China; Chongqing Engineering Research Center of High-Resolution and Three-Dimensional Dynamic Imaging Technology, Chongqing 400714, China
| | - Xiaoting Yu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; Chongqing School, University of Chinese Academy of Sciences, Chongqing 400714, China; Chongqing Engineering Research Center of High-Resolution and Three-Dimensional Dynamic Imaging Technology, Chongqing 400714, China
| | - Wei Chen
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; Chongqing School, University of Chinese Academy of Sciences, Chongqing 400714, China; Chongqing Engineering Research Center of High-Resolution and Three-Dimensional Dynamic Imaging Technology, Chongqing 400714, China
| | - Fucheng Qiu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; Chongqing School, University of Chinese Academy of Sciences, Chongqing 400714, China; Chongqing Engineering Research Center of High-Resolution and Three-Dimensional Dynamic Imaging Technology, Chongqing 400714, China
| | - Dandan Li
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; Chongqing School, University of Chinese Academy of Sciences, Chongqing 400714, China; Chongqing Engineering Research Center of High-Resolution and Three-Dimensional Dynamic Imaging Technology, Chongqing 400714, China
| | - Zhongbo Yang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; Chongqing School, University of Chinese Academy of Sciences, Chongqing 400714, China; Chongqing Engineering Research Center of High-Resolution and Three-Dimensional Dynamic Imaging Technology, Chongqing 400714, China
| | - Songrui Yang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; Chongqing School, University of Chinese Academy of Sciences, Chongqing 400714, China
| | - Shengjun Lu
- Department of Mechanical Engineering, University of Houston, Houston, TX 77204, USA
| | - Liang Wang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; Chongqing School, University of Chinese Academy of Sciences, Chongqing 400714, China
| | - Shuanglong Feng
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; Chongqing School, University of Chinese Academy of Sciences, Chongqing 400714, China
| | - Peng Xiu
- Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, China
| | - Mingjie Tang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; Chongqing School, University of Chinese Academy of Sciences, Chongqing 400714, China; Chongqing Engineering Research Center of High-Resolution and Three-Dimensional Dynamic Imaging Technology, Chongqing 400714, China
| | - Huabin Wang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; Chongqing School, University of Chinese Academy of Sciences, Chongqing 400714, China; Chongqing Engineering Research Center of High-Resolution and Three-Dimensional Dynamic Imaging Technology, Chongqing 400714, China.
| |
Collapse
|
3
|
Qu J, Cheng H, Lan H, Zheng B, Luo Z, Yang X, Yi X, Wu G, Chen S, Pan A. Space-Confined Growth of Ultrathin P-Type GeTe Nanosheets for Broadband Photodetectors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309391. [PMID: 38456381 DOI: 10.1002/smll.202309391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 02/18/2024] [Indexed: 03/09/2024]
Abstract
As p-type phase-change degenerate semiconductors, crystalline and amorphous germanium telluride (GeTe) exhibit metallic and semiconducting properties, respectively. However, the massive structural defects and strong interface scattering in amorphous GeTe films significantly reduce their performance. In this work, two-dimensional (2D) p-type GeTe nanosheets are synthesized via a specially designed space-confined chemical vapor deposition (CVD) method, with the thickness of the GeTe nanosheets reduced to 1.9 nm. The space-confined CVD method improves the crystallinity of ultrathin GeTe by lowering the partial pressure of the reactant gas, resulting in GeTe nanosheets with excellent p-type semiconductor properties, such as a satisfactory on/off ratio of 105. Temperature-dependent electrical measurements demonstrate that variable-range hopping and optical-phonon-assisted hopping mechanisms dominate transport behavior at low and high temperatures, respectively. GeTe devices exhibit significantly high responsivity (6589 and 2.2 A W-1 at 633 and 980 nm, respectively) and detectivity (1.67 × 1011 and 1.3 × 108 Jones at 633 and 980 nm, respectively), making them feasible for broadband photodetectors in the visible to near-infrared range. Furthermore, the fabricated GeTe/WS2 diode exhibits a rectification ratio of 103 at zero gate voltage. These satisfactory p-type semiconductor properties demonstrate that ultrathin GeTe exhibits enormous potential for applications in optoelectronic interconnection circuits.
Collapse
Affiliation(s)
- Junyu Qu
- Hunan Institute of Optoelectronic Integration, Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Materials Science and Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
| | - Haodong Cheng
- Hunan Institute of Optoelectronic Integration, Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Materials Science and Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
| | - Huiping Lan
- Hunan Institute of Optoelectronic Integration, Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Materials Science and Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
| | - Biyuan Zheng
- Hunan Institute of Optoelectronic Integration, Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Materials Science and Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
| | - Ziyu Luo
- Hunan Institute of Optoelectronic Integration, Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Materials Science and Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
| | - Xin Yang
- Hunan Institute of Optoelectronic Integration, Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Materials Science and Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
| | - Xiao Yi
- Hunan Institute of Optoelectronic Integration, Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Materials Science and Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
| | - Guangcheng Wu
- Hunan Institute of Optoelectronic Integration, Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Materials Science and Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
| | - Shula Chen
- Hunan Institute of Optoelectronic Integration, Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Materials Science and Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
| | - Anlian Pan
- Hunan Institute of Optoelectronic Integration, Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, College of Materials Science and Engineering, Hunan University, Changsha, Hunan, 410082, P. R. China
- School of Physics and Electronics, Hunan Normal University, Changsha, Hunan, 410081, P. R. China
| |
Collapse
|
4
|
Ye H, Tang H, Yu S, Yang Y, Li H. Rhodamine 6G/Transition Metal Dichalcogenide Hybrid Nanoscrolls for Enhanced Optoelectronic Performance. Molecules 2024; 29:2799. [PMID: 38930864 PMCID: PMC11207076 DOI: 10.3390/molecules29122799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 06/07/2024] [Accepted: 06/08/2024] [Indexed: 06/28/2024] Open
Abstract
The low light absorption efficiency has seriously hindered the application of two-dimensional transition metal dichalcogenide (TMDC) nanosheets in the field of optoelectronic devices. Various approaches have been used to improve the performance of TMDC nanosheets. Preparation of one-dimensional TMDC nanoscrolls in combination with photoactive materials has been a promising method to improve their properties recently. In this work, we report a facile method to enhance the optoelectronic performance of TMDC nanoscrolls by wrapping the photoactive organic dye rhodamine (R6G) into them. After R6G molecules were deposited on monolayer TMDC nanosheets by the solution method, the R6G/MoS2 nanoscrolls with lengths up to hundreds of microns were prepared in a short time by dropping a mixture of ammonia and ethanol solution on the R6G/MoS2 nanosheets. The as-obtained R6G/MoS2 nanoscrolls were well characterized by optical microscopy, atomic force microscopy, Raman spectroscopy, and transmission electron microscopy to prove the encapsulation of R6G. There are multiple type II heterojunction interfaces in the R6G/MoS2 nanoscrolls, which can promote the generation of photo-induced carriers and the following electron-hole separation. The separated electrons were transported rapidly along the axial direction of the R6G/MoS2 nanoscrolls, which greatly improves the efficiency of light absorption and photoresponse. Under the irradiation of an incident 405 nm laser, the photoresponsivity, carrier mobility, external quantum efficiency, and detectivity of R6G/MoS2 nanoscrolls were enhanced to 66.07 A/W, 132.93 cm2V-1s-1, 20,261%, and 1.25 × 1012 cm·Hz1/2W-1, which are four orders of magnitude higher than those of monolayer MoS2 nanosheets. Our work indicates that the R6G/TMDC hybrid nanoscrolls could be promising materials for high-performance optoelectronic devices.
Collapse
Affiliation(s)
| | | | | | | | - Hai Li
- Key Laboratory of Flexible Electronics (KLOFE), Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China
| |
Collapse
|
5
|
Harada T, Suzuki Y, Nakato T, Breu J, Kawamata J. Real-Time Monitoring of Adsorption-Induced Scrolling of Colloidal Inorganic Nanosheets. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:9189-9196. [PMID: 38637013 DOI: 10.1021/acs.langmuir.4c00560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Inorganic nanotubes have attracted much attention due to their unique physicochemical properties. Nanotubes can be prepared by scrolling exfoliated nanosheets under ambient conditions. However, how the nanosheet scrolled in its colloidal state has not been experimentally visualized. In this paper, we directly observed the scrolling process of nanosheets upon adsorption of organic cations. Exfoliated flat nanosheets of niobate and clay in aqueous colloids were found to scroll by adding organic cations, such as exfoliation reagents, to the colloids. Employment of cationic stilbazolium dye enabled in situ observation of the dye adsorption and scrolling by optical microscopy based on changes in color and morphology of the nanosheets. The scrolling was promoted for nanosheets adsorbed with a stilbazolium dye with a longer alkyl chain, suggesting that the interaction between the hydrophobic parts of the dye cations is the driving force of the scrolling. This finding should encourage research on the formation of nanotubes from nanosheets and also provides important guidelines for the selection of appropriate exfoliation reagents when exfoliating nanosheets from layered crystals.
Collapse
Affiliation(s)
- Takumi Harada
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yoshida, Yamaguchi 753-8512, Japan
| | - Yasutaka Suzuki
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yoshida, Yamaguchi 753-8512, Japan
| | - Teruyuki Nakato
- Department of Applied Chemistry, Kyushu Institute of Technology, 1-1 Sensui-cho, Tobata, Kitakyushu, Fukuoka 804-8550, Japan
| | - Josef Breu
- Bavarian Polymer Institute and Department of Chemistry, University of Bayreuth, 95447 Bayreuth, Germany
| | - Jun Kawamata
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yoshida, Yamaguchi 753-8512, Japan
| |
Collapse
|
6
|
Qiao S, Qiu Y, Lu Y, Wang Z, Yuan M, Ji Q. One-Dimensional MoS 2 Nanoscrolls as Miniaturized Memories. NANO LETTERS 2024; 24:4498-4504. [PMID: 38587933 DOI: 10.1021/acs.nanolett.4c00423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Dimensionality of materials is closely related to their physical properties. For two-dimensional (2D) semiconductors such as monolayer molybdenum disulfide (MoS2), converting them from 2D nanosheets to one-dimensional (1D) nanoscrolls could contribute to remarkable electronic and optoelectronic properties, yet the rolling-up process still lacks sufficient controllability, which limits the development of their device applications. Herein we report a modified solvent evaporation-induced rolling process that halts at intermediate states and achieve MoS2 nanoscrolls with high yield and decent axial uniformity. The accordingly fabricated nanoscroll memories exhibit an on/off ratio of ∼104 and a retention time exceeding 103 s and can realize multilevel storage with pulsed gate voltages. Such open-end, high-curvature, and hollow 1D nanostructures provide new possibilities to manipulate the hysteresis windows and, consequently, the charge storage characteristics of nanoscale field-effect transistors, thereby holding great promise for the development of miniaturized memories.
Collapse
Affiliation(s)
- Shuo Qiao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
| | - Yuanyuan Qiu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
| | - Yue Lu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
| | - Zihan Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
| | - Mingxuan Yuan
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
| | - Qingqing Ji
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
| |
Collapse
|
7
|
Janardhanan JC, Padmanabhan NT, Jandas PJ, Nayar NV, Manoj N, Pillai SC, John H. Directed morphology engineering of 2D MoS 2 nanosheets to 1D nanoscrolls with enhanced hydrogen evolution and specific capacitance. J Colloid Interface Sci 2023; 652:240-249. [PMID: 37595441 DOI: 10.1016/j.jcis.2023.08.077] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/03/2023] [Accepted: 08/11/2023] [Indexed: 08/20/2023]
Abstract
1D-molybdenum disulfide (MoS2) nanoscrolls displayed enhanced electrochemical properties compared to 2D-MoS2 nanosheet counterparts. Rolling of nanosheets is the main fabrication route to nanoscrolls. However, owing to the conflict between chemical stability and multiple bending, the morphology transition from nanosheets to nanoscrolls is quite challenging. Herein we describe a reversible morphology transition from nanosheets to nanoscrolls by utilizing non-covalent interactions between MoS2 nanosheets and phenothiazine based organic dye. Interestingly, nanoscrolls can easily be opened back into nanosheets by destroying the non-covalent interactions with organic solvents. The prepared nanoscrolls exhibited enhanced electrochemical properties than nanosheets. Compared to nanosheets, nanoscrolls exhibited comparatively lower overpotential with a Tafel slope of 141 mV dec-1 and high specific capacitance of 1868 F g-1. Hydrogen evolution by the Volmer-Heyrovsky mechanism being superior for the nanoscrolls is envisaged by the relatively increased availability of Hads sites at MoS2 edges induced by scrolling. Whereas the high specific capacitance value of nanoscrolls is ascribed to the enhanced electrical double-layer capacitance mediated charge storage, which arises due to the synergistic effect of both scrolled structure and the electron-rich phenothiazine-based dye.
Collapse
Affiliation(s)
- Jith C Janardhanan
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kochi, Kerala 682022, India
| | - Nisha T Padmanabhan
- Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kochi, Kerala 682022, India
| | - P J Jandas
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kochi, Kerala 682022, India
| | - Nabendu V Nayar
- Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kochi, Kerala 682022, India
| | - Narayanapillai Manoj
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi, Kerala 682022, India
| | - Suresh C Pillai
- Nanotechnology and Bio-Engineering Research Group, Department of Environmental Science, School of Science, Atlantic Technological University, Sligo, Ash Lane, Sligo F91YW50, Ireland
| | - Honey John
- Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kochi, Kerala 682022, India; Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kochi, Kerala 682022, India.
| |
Collapse
|
8
|
Yang R, Ye H, Sun N, Liu W. Spontaneous formation of MoS 2 nanoscrolls from flat monolayers with sulfur vacancies: a molecular dynamics investigation. NANOSCALE 2023; 15:15427-15434. [PMID: 37706225 DOI: 10.1039/d3nr03407k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
The unique physical properties exhibited by one-dimensional nanoscrolls assembled from nanosheets have propelled them into the spotlight of two-dimensional materials research. However, the self-scrolling mechanism of transition metal dichalcogenides has not been unveiled with an appropriate theoretical approach. In this paper, we systematically investigate the spontaneous formation of MoS2 nanoscrolls from flat monolayers by molecular dynamics simulations based on a reactive force field. The sulfur vacancies on one side break the atomic symmetry and the reconstruction acts as the driving force for the curling of the flat nanoribbon. If sulfur vacancies are arranged in a line, clear bending angles of the nanoribbon can be obtained and the angle relies on the direction of the line vacancy. With random sulfur vacancies on the top, spontaneous curling and a time-dependent scrolling process of the nanoribbon can be observed. The interplay between dangling bonds and van der Waals (vdW) interactions plays a pivotal role in the formation process of MoS2 nanoscrolls. With an increasing density of sulfur vacancies, the curvature of the nanoscrolls increases. Meanwhile, the scrolling rate accelerates and the time required for the formation of vdW structures decreases. These results provide theoretical insights into the fabrication of nanoscrolls and pave avenues for tailoring nanoscrolls with different morphologies.
Collapse
Affiliation(s)
- Ruhao Yang
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China.
| | - Han Ye
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China.
| | - Naizhang Sun
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China.
| | - Wenjun Liu
- State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China.
| |
Collapse
|
9
|
Yu S, Wang P, Ye H, Tang H, Wang S, Wu Z, Pei C, Lu J, Li H. Transition Metal Dichalcogenides Nanoscrolls: Preparation and Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2433. [PMID: 37686941 PMCID: PMC10490124 DOI: 10.3390/nano13172433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/21/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023]
Abstract
Two-dimensional (2D) transition metal dichalcogenides (TMDCs) nanosheets have shown extensive applications due to their excellent physical and chemical properties. However, the low light absorption efficiency limits their application in optoelectronics. By rolling up 2D TMDCs nanosheets, the one-dimensional (1D) TMDCs nanoscrolls are formed with spiral tubular structure, tunable interlayer spacing, and opening ends. Due to the increased thickness of the scroll structure, the light absorption is enhanced. Meanwhile, the rapid electron transportation is confined along the 1D structure. Therefore, the TMDCs nanoscrolls show improved optoelectronic performance compared to 2D nanosheets. In addition, the high specific surface area and active edge site from the bending strain of the basal plane make them promising materials for catalytic reaction. Thus, the TMDCs nanoscrolls have attracted intensive attention in recent years. In this review, the structure of TMDCs nanoscrolls is first demonstrated and followed by various preparation methods of the TMDCs nanoscrolls. Afterwards, the applications of TMDCs nanoscrolls in the fields of photodetection, hydrogen evolution reaction, and gas sensing are discussed.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | - Hai Li
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing 211816, China
| |
Collapse
|
10
|
Latif S, Akram B, Saraj CS, Khan BA, Ali M, Akhtar J. A single step wet chemical approach to bifunctional ultrathin (ZnO) 62(Fe 2O 3) 38 dendritic nanosheets. RSC Adv 2023; 13:23038-23042. [PMID: 37529361 PMCID: PMC10388154 DOI: 10.1039/d3ra04795d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 07/25/2023] [Indexed: 08/03/2023] Open
Abstract
At the ultrathin scale, nanomaterials exhibit interesting chemical and physical properties, like flexibility, and polymer-like rheology. However, to limit the dimensions of composite nanomaterials at the ultrathin level is still a challenging task. Herein, by adopting a new low temperature single step and single pot wet chemical approach, we have successfully fabricated two dimensional (2D) mixed oxide ZnO-Fe2O3 dendritic nanosheets (FZDNSs). Various control experimental outcomes demonstrate that precursor salts of both the metals are crucial for the formation of stable 2D FZDNSs. The obtained FZDNSs not only exhibit the best photoreduction performance but also much enhanced electrocatalytic performance. This work will provide a promising avenue for the synthesis of cost effective transition metal mixed oxide based 2D nanosheets having wide ranging applications.
Collapse
Affiliation(s)
- Saba Latif
- Department of Chemistry, University of Azad Jammu & Kashmir Muzaffarabad AJ&K Pakistan
| | - Bilal Akram
- Department of Chemistry, Women University of Azad Jammu & Kashmir Bagh AJ&K Pakistan
| | - Chaudry Sajed Saraj
- GPL, State Key Lab. of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences Changchun 130033 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Bilal Ahmad Khan
- Department of Chemistry, University of Azad Jammu & Kashmir Muzaffarabad AJ&K Pakistan
| | - Mudussar Ali
- Department of Chemistry, Tsinghua University Beijing China
| | - Javeed Akhtar
- Materials Lab, Department of Chemistry, Mirpur University of Science and Technology Mirpur AJ&K Pakistan
| |
Collapse
|
11
|
Su J, Li X, Xu M, Zhang J, Liu X, Zheng X, Shi Y, Zhang Q. Enhancing Photodetection Ability of MoS 2 Nanoscrolls via Interface Engineering. ACS APPLIED MATERIALS & INTERFACES 2023; 15:3307-3316. [PMID: 36596237 DOI: 10.1021/acsami.2c18537] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Van der Waals semiconductors have been really confirmed in two-dimensional (2D) layered systems beyond the traditional limits of lattice-matching requirements. The extension of this concept to the 1D atomic level may generate intriguing physical functionalities due to its non-covalent bonding surface. However, whether the curvature of the lattice in such rolled-up structures affects their optoelectronic features or the performance of devices established on them remains an open question. Here, MoS2-based nanoscrolls were obtained by virtue of an alkaline solution-assisted method and the 0D/1D (BaTiO3/MoS2) strategy to tune their optoelectronic properties and improve the light sensing performance was explored. The capillary force generated by a drop of NaHCO3 solution could drive the delamination of nanosheets from the underlying substrate and a spontaneous rolling-up process. The package of BaTiO3 particles in MoS2 nanoscrolls has been evident by TEM image, and the optical characterizations were mirrored via micro-Raman spectroscopy and photoluminescence. These bare MoS2 nanoscrolls reveal a reduced photoresponse compared to the plane structures due to the curvature of the lattice. However, such BaTiO3/MoS2 nanoscrolls exhibit a significantly improved photodetection (Rhybrid = 73.9 A/W vs Ronly = 1.1 A/W and R2D = 1.5 A/W at 470 nm, 0.58 mW·cm-2), potentially due to the carrier extraction/injection occurring between BaTiO3 and MoS2. This study thereby provides an insight into 1D van der Waals material community and demonstrates a general approach to fabricate high-performance 1D van der Waals optoelectronic devices.
Collapse
Affiliation(s)
- Jun Su
- Center for Advanced Optoelectronic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University (HDU), Hangzhou 310018, China
- Key Laboratory of Novel Materials for Sensor of Zhejiang Province, Hangzhou Dianzi University (HDU), Hangzhou 310018, P. R. China
| | - Xin Li
- Center for Advanced Optoelectronic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University (HDU), Hangzhou 310018, China
- Key Laboratory of Novel Materials for Sensor of Zhejiang Province, Hangzhou Dianzi University (HDU), Hangzhou 310018, P. R. China
| | - Minxuan Xu
- Center for Advanced Optoelectronic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University (HDU), Hangzhou 310018, China
- Key Laboratory of Novel Materials for Sensor of Zhejiang Province, Hangzhou Dianzi University (HDU), Hangzhou 310018, P. R. China
| | - Jian Zhang
- Key Laboratory of Novel Materials for Sensor of Zhejiang Province, Hangzhou Dianzi University (HDU), Hangzhou 310018, P. R. China
| | - Xiaolian Liu
- Key Laboratory of Novel Materials for Sensor of Zhejiang Province, Hangzhou Dianzi University (HDU), Hangzhou 310018, P. R. China
| | - Xin Zheng
- Center for Advanced Optoelectronic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University (HDU), Hangzhou 310018, China
- Key Laboratory of Novel Materials for Sensor of Zhejiang Province, Hangzhou Dianzi University (HDU), Hangzhou 310018, P. R. China
| | - Yueqin Shi
- Center for Advanced Optoelectronic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University (HDU), Hangzhou 310018, China
- Key Laboratory of Novel Materials for Sensor of Zhejiang Province, Hangzhou Dianzi University (HDU), Hangzhou 310018, P. R. China
| | - Qi Zhang
- Center for Advanced Optoelectronic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University (HDU), Hangzhou 310018, China
- Key Laboratory of Novel Materials for Sensor of Zhejiang Province, Hangzhou Dianzi University (HDU), Hangzhou 310018, P. R. China
| |
Collapse
|
12
|
Aftab S, Iqbal MZ, Rim YS. Recent Advances in Rolling 2D TMDs Nanosheets into 1D TMDs Nanotubes/Nanoscrolls. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205418. [PMID: 36373722 DOI: 10.1002/smll.202205418] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/25/2022] [Indexed: 06/16/2023]
Abstract
Transition metal dichalcogenides (TMDs) van der Waals (vdW) 1D heterostructures are recently synthesized from 2D nanosheets, which open up new opportunities for potential applications in electronic and optoelectronic devices. The most recent and promising strategies in regards to forming 1D TMDs nanotubes (NTs) or nanoscrolls (NSs) in this review article as well as their heterostructures that are produced from 2D TMDs are summarized. In order to improve the functionality of ultrathin 1D TMDs that are coaxially combined with boron nitride nanotubes and single-walled carbon nanotubes. 1D heterostructured devices perform better than 2D TMD nanosheets when the two devices are compared. The photovoltaic effect in WS2 or MoS2 NTs without a junction may exceed the Shockley-Queisser limit for the above-band-gap photovoltage generation. Photoelectrochemical hydrogen evolution is accelerated when monolayer WS2 or MoS2 NSs are incorporated into a heterojunction. In addition, the photovoltaic performance of the WSe2 /MoS2 NSs junction is superior to that of the performance of MoS2 NSs. The summary of the current research about 1D TMDs can be used in a variety of ways, which assists in the development of new types of nanoscale optoelectronic devices. Finally, it also summarizes the current challenges and prospects.
Collapse
Affiliation(s)
- Sikandar Aftab
- Department of Intelligent Mechatronics Engineering, Sejong University, Seoul, 05006, South Korea
| | - Muhammad Zahir Iqbal
- Faculty of Engineering Sciences, Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi, Khyber Pakhtunkhwa, 23640, Pakistan
| | - You Seung Rim
- Department of Intelligent Mechatronics Engineering, Sejong University, Seoul, 05006, South Korea
| |
Collapse
|
13
|
Na J, Park C, Lee CH, Choi WR, Choi S, Lee JU, Yang W, Cheong H, Campbell EEB, Jhang SH. Indirect Band Gap in Scrolled MoS 2 Monolayers. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3353. [PMID: 36234481 PMCID: PMC9565867 DOI: 10.3390/nano12193353] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/14/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
MoS2 nanoscrolls that have inner core radii of ∼250 nm are generated from MoS2 monolayers, and the optical and transport band gaps of the nanoscrolls are investigated. Photoluminescence spectroscopy reveals that a MoS2 monolayer, originally a direct gap semiconductor (∼1.85 eV (optical)), changes into an indirect gap semiconductor (∼1.6 eV) upon scrolling. The size of the indirect gap for the MoS2 nanoscroll is larger than that of a MoS2 bilayer (∼1.54 eV), implying a weaker interlayer interaction between concentric layers of the MoS2 nanoscroll compared to Bernal-stacked MoS2 few-layers. Transport measurements on MoS2 nanoscrolls incorporated into ambipolar ionic-liquid-gated transistors yielded a band gap of ∼1.9 eV. The difference between the transport and optical gaps indicates an exciton binding energy of 0.3 eV for the MoS2 nanoscrolls. The rolling up of 2D atomic layers into nanoscrolls introduces a new type of quasi-1D nanostructure and provides another way to modify the band gap of 2D materials.
Collapse
Affiliation(s)
- Jeonghyeon Na
- School of Physics, Konkuk University, Seoul 05029, Korea
| | - Changyeon Park
- School of Physics, Konkuk University, Seoul 05029, Korea
| | - Chang Hoi Lee
- School of Physics, Konkuk University, Seoul 05029, Korea
| | - Won Ryeol Choi
- School of Physics, Konkuk University, Seoul 05029, Korea
| | - Sooho Choi
- Center for Integrated Nanostructure Physics, Institute for Basic Science, Suwon 16419, Korea
| | - Jae-Ung Lee
- Department of Physics, Ajou University, Suwon 16499, Korea
| | - Woochul Yang
- Department of Physics, Dongguk University, Seoul 04620, Korea
| | - Hyeonsik Cheong
- Department of Physics, Sogang University, Seoul 04107, Korea
| | - Eleanor E. B. Campbell
- EaStCHEM, School of Chemistry, Edinburgh University, David Brewster Road, Edinburgh EH9 3FJ, UK
- Department of Physics, Ehwa Womans University, Seoul 03760, Korea
| | - Sung Ho Jhang
- School of Physics, Konkuk University, Seoul 05029, Korea
| |
Collapse
|
14
|
Direct Synthesis of MoS2 Nanosheets in Reduced Graphene Oxide Nanoscroll for Enhanced Photodetection. NANOMATERIALS 2022; 12:nano12091581. [PMID: 35564290 PMCID: PMC9101584 DOI: 10.3390/nano12091581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/02/2022] [Accepted: 05/04/2022] [Indexed: 12/10/2022]
Abstract
Due to their unique tubular and spiral structure, graphene and graphene oxide nanoscrolls (GONS) have shown extensive applications in various fields. However, it is still a challenge to improve the optoelectronic application of graphene and GONS because of the zero bandgap of graphene. Herein, ammonium tetrathiomolybdate ((NH4)2MoS4) was firstly wrapped into the ((NH4)2MoS4@GONS) by molecular combing the mixture of (NH4)2MoS4 and GO solution on hydrophobic substrate. After thermal annealing, the (NH4)2MoS4 and GO were converted to MoS2 nanosheets and reduced GO (RGO) simultaneously, and, thus, the MoS2@RGONS was obtained. Raman spectroscopy and high-resolution transmission electron microscopy were used to confirm the formation of MoS2 nanosheets among the RGONS. The amount of MoS2 wrapped in RGONS increased with the increasing height of GONS, which is confirmed by the atomic force microscopy and Raman spectroscopy. The as-prepared MoS2@RGONS showed much better photoresponse than the RGONS under visible light. The photocurrent-to-dark current ratios of photodetectors based on MoS2@RGONS are ~570, 360 and 140 under blue, red and green lasers, respectively, which are 81, 144 and 35 times of the photodetectors based on RGONS. Moreover, the MoS2@RGONS-based photodetector exhibited good power-dependent photoresponse. Our work indicates that the MoS2@RGONS is expected to be a promising material in the fields of optoelectronic devices and flexible electronics.
Collapse
|
15
|
Wang L, Li X, Pei C, Wei C, Dai J, Huang X, Li H. Single- and few-layer 2H-SnS2 and 4H-SnS2 nanosheets for high-performance photodetection. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.09.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
16
|
Ghosh R, Singh M, Chang LW, Lin HI, Chen YS, Muthu J, Papnai B, Kang YS, Liao YM, Bera KP, Guo GY, Hsieh YP, Hofmann M, Chen YF. Enhancing the Photoelectrochemical Hydrogen Evolution Reaction through Nanoscrolling of Two-Dimensional Material Heterojunctions. ACS NANO 2022; 16:5743-5751. [PMID: 35377604 DOI: 10.1021/acsnano.1c10772] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The clean production of hydrogen from water using sunlight has emerged as a sustainable alternative toward large-scale energy generation and storage. However, designing photoactive semiconductors that are suitable for both light harvesting and water splitting is a pivotal challenge. Atomically thin transition metal dichalcogenides (TMD) are considered as promising photocatalysts because of their wide range of available electronic properties and compositional variability. However, trade-offs between carrier transport efficiency, light absorption, and electrochemical reactivity have limited their prospects. We here combine two approaches that synergistically enhance the efficiency of photocarrier generation and electrocatalytic efficiency of two-dimensional (2D) TMDs. The arrangement of monolayer WS2 and MoS2 into a heterojunction and subsequent nanostructuring into a nanoscroll (NS) yields significant modifications of fundamental properties from its constituents. Spectroscopic characterization and ab initio simulation demonstrate the beneficial effects of straining and wall interactions on the band structure of such a heterojunction-NS that enhance the electrochemical reaction rate by an order of magnitude compared to planar heterojunctions. Phototrapping in this NS further increases the light-matter interaction and yields superior photocatalytic performance compared to previously reported 2D material catalysts and is comparable to noble-metal catalyst systems in the photoelectrochemical hydrogen evolution reaction (PEC-HER) process. Our approach highlights the potential of morphologically varied TMD-based catalysts for PEC-HER.
Collapse
Affiliation(s)
- Rapti Ghosh
- Molecular Science and Technology Program, Taiwan International Graduate Program, Academia Sinica, Taipei 106, Taiwan
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 115, Taiwan
- Department of Physics, National Central University, Chung-Li 320, Taiwan
- Department of Physics, National Taiwan University, Taipei 106, Taiwan
| | - Mukesh Singh
- Department of Physics, National Taiwan University, Taipei 106, Taiwan
| | - Li Wei Chang
- Department of Physics, National Taiwan University, Taipei 106, Taiwan
- Physics Division, National Center for Theoretical Sciences, Taipei 106, Taiwan
| | - Hung-I Lin
- Department of Physics, National Taiwan University, Taipei 106, Taiwan
| | - Yu Siang Chen
- Institute of Opto-Mechatronics, National Chung Cheng University, Chia-Yi 62102, Taiwan
| | - Jeyavelan Muthu
- Department of Physics, National Taiwan University, Taipei 106, Taiwan
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
| | | | - Yi Sun Kang
- Department of Physics, National Taiwan University, Taipei 106, Taiwan
| | - Yu-Ming Liao
- Department of Physics, National Taiwan University, Taipei 106, Taiwan
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
| | | | - Guang-Yu Guo
- Department of Physics, National Taiwan University, Taipei 106, Taiwan
- Physics Division, National Center for Theoretical Sciences, Taipei 106, Taiwan
| | - Ya-Ping Hsieh
- Molecular Science and Technology Program, Taiwan International Graduate Program, Academia Sinica, Taipei 106, Taiwan
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 115, Taiwan
| | - Mario Hofmann
- Department of Physics, National Taiwan University, Taipei 106, Taiwan
| | - Yang-Fang Chen
- Department of Physics, National Taiwan University, Taipei 106, Taiwan
- Advanced Research Centre for Green Materials Science and Technology, National Taiwan University, Taipei 106, Taiwan
| |
Collapse
|
17
|
Zhao Y, You H, Li X, Pei C, Huang X, Li H. Solvent-Free Preparation of Closely Packed MoS 2 Nanoscrolls for Improved Photosensitivity. ACS APPLIED MATERIALS & INTERFACES 2022; 14:9515-9524. [PMID: 35133788 DOI: 10.1021/acsami.1c24291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Due to their enhanced light absorption efficiency, one-dimensional (1D) transition metal dichalcogenide (TMDC) nanoscrolls derived from two-dimensional (2D) TMDC nanosheets have shown excellent optoelectronic properties. Currently, organic solvent and alkaline droplet-assisted scrolling methods are popular for preparing TMDC nanoscrolls. Unfortunately, the adsorption of organic solvent or alkaline impurities on TMDC is inevitable during the preparation, which affects the optoelectronic properties of TMDC. In this work, we report a solvent-free method to prepare closely packed MoS2 nanoscrolls by dragging a deionized water droplet onto the chemical vapor deposition grown monolayer MoS2 nanosheets at 100 °C (referred to as MoS2 NS-W). The as-prepared MoS2 NS-W was well characterized by optical microscopy, atomic force microscopy, and ultralow frequency (ULF) Raman spectroscopy. After high temperature annealing, the height of MoS2 nanoscrolls prepared using an ethanol droplet (referred to as MoS2 NS-E) greatly decreased, indicating the loss of encapsulated ethanol in MoS2 NS-E. While the height of MoS2 NS-W was almost unchanged under the same conditions, implying that no water was embedded in the scroll. Compared to the MoS2 NS-E, the MoS2 NS-W shows more ULF breathing mode peaks, confirming the stronger interlayer interaction. In addition, the MoS2 NS-W shows a higher Young's modulus than MoS2 NS-E, which could arise from the closely packed scroll structure. Importantly, the MoS2 NS-W device showed a photosensitivity 1 order of magnitude higher than that of the MoS2 NS-E device under blue, green, and red lasers, respectively. The decreased photosensitivity of MoS2 NS-E was attributed to the larger dark current, which might be assigned to the adsorbed ethanol between the adjacent layers in MoS2 NS-E. Our work provides a solvent-free method to prepare closely packed MoS2 nanoscrolls at large scale and demonstrates their great potential for high-performance optoelectronic devices.
Collapse
Affiliation(s)
- Ying Zhao
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing 211816, P. R. China
| | - Hui You
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing 211816, P. R. China
| | - Xinzhe Li
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing 211816, P. R. China
| | - Chengjie Pei
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing 211816, P. R. China
| | - Xiao Huang
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing 211816, P. R. China
| | - Hai Li
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University, Nanjing 211816, P. R. China
| |
Collapse
|
18
|
Zhang S, Gao F, Feng W, Yang H, Hu Y, Zhang J, Xiao H, Li Z, Hu P. High-responsivity photodetector based on scrolling monolayer MoS 2hybridized with carbon quantum dots. NANOTECHNOLOGY 2021; 33:105301. [PMID: 34818634 DOI: 10.1088/1361-6528/ac3ce1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/24/2021] [Indexed: 06/13/2023]
Abstract
The monolayer MoS2based photodetectors have been widely investigated, which show limited photoelectric performances due to its low light absorption and uncontrollable adsorbates. In this paper, we present a MoS2-based hybrid nanoscrolls device, in which one-dimensional nanoscrollsof MoS2is hybridized with carbon quantum dots (CQDs). This device architecture effectively enhanced the photodetection performance. The photoresponsivity and detectivity values of MoS2/CQDs-NS photodetectors are respectively 1793 A W-1and 5.97 × 1012Jones, which are 830-fold and 268-fold higher than those of pristine MoS2under 300 nm illumination atVds = 5 V. This research indicates a significant progress in fabricating high-performance MoS2photodetectors.
Collapse
Affiliation(s)
- Shichao Zhang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China
- Key Laboratory of Micro-systems and Micro-structures Manufacturing of Ministry of Education, Harbin Institute of Technology, Harbin 150080, People's Republic of China
| | - Feng Gao
- Key Laboratory of Micro-systems and Micro-structures Manufacturing of Ministry of Education, Harbin Institute of Technology, Harbin 150080, People's Republic of China
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Wei Feng
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, People's Republic of China
| | - Huihui Yang
- Key Laboratory of Micro-systems and Micro-structures Manufacturing of Ministry of Education, Harbin Institute of Technology, Harbin 150080, People's Republic of China
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Yunxia Hu
- Key Laboratory of Micro-systems and Micro-structures Manufacturing of Ministry of Education, Harbin Institute of Technology, Harbin 150080, People's Republic of China
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Jia Zhang
- Key Laboratory of Micro-systems and Micro-structures Manufacturing of Ministry of Education, Harbin Institute of Technology, Harbin 150080, People's Republic of China
| | - Haiying Xiao
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Zhonghua Li
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China
- Key Laboratory of Micro-systems and Micro-structures Manufacturing of Ministry of Education, Harbin Institute of Technology, Harbin 150080, People's Republic of China
| | - PingAn Hu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China
- Key Laboratory of Micro-systems and Micro-structures Manufacturing of Ministry of Education, Harbin Institute of Technology, Harbin 150080, People's Republic of China
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| |
Collapse
|
19
|
Yue Q, Wang L, Fan H, Zhao Y, Wei C, Pei C, Song Q, Huang X, Li H. Wrapping Plasmonic Silver Nanoparticles inside One-Dimensional Nanoscrolls of Transition-Metal Dichalcogenides for Enhanced Photoresponse. Inorg Chem 2021; 60:4226-4235. [PMID: 33382623 DOI: 10.1021/acs.inorgchem.0c03235] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The low light absorption of transition-metal dichalcogenide (TMDC) nanosheets hinders their application as high-performance optoelectronic devices. Rolling them up into one-dimensional (1D) nanoscrolls and decorating them with plasmonic nanoparticles (NPs) are both effective strategies for enhancing their performance. When these two approaches are combined, in this work, the light-matter interaction in TMDC nanosheets is greatly improved by encapsulating silver nanoparticles (Ag NPs) in TMDC nanoscrolls. After the silver nitrate (AgNO3) solution was spin-coated on monolayer (1L) MoS2 and WS2 nanosheets grown by chemical vapor deposition, Ag NPs were homogeneously formed to obtain MoS2-Ag and WS2-Ag nanosheets due to the TMDC-assisted spontaneous reduction, and their size and density can be well controlled by tuning the concentration of the AgNO3 solution. By the simple placement of alkaline droplets on MoS2-Ag or WS2-Ag hybrid nanosheets, MoS2-Ag or WS2-Ag nanoscrolls with large sizes were obtained in large area. The obtained hybrid nanoscrolls exhibited up to 500 times increased photosensitivities compared with 1L MoS2 nanosheets, arising from the localized surface plasmon resonance effect of Ag NPs and the scrolled-nanosheet structure. Our work provides a reliable method for the facile and large-area preparation of NP/nanosheet hybrid nanoscrolls and demonstrates their great potential for high-performance optoelectronic devices.
Collapse
Affiliation(s)
- Qiuyan Yue
- Key Laboratory of Flexible Electronics and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Lin Wang
- Key Laboratory of Flexible Electronics and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Huacheng Fan
- Key Laboratory of Flexible Electronics and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Ying Zhao
- Key Laboratory of Flexible Electronics and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Cong Wei
- Key Laboratory of Flexible Electronics and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Chengjie Pei
- Key Laboratory of Flexible Electronics and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Qingsong Song
- Key Laboratory of Flexible Electronics and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Xiao Huang
- Key Laboratory of Flexible Electronics and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Hai Li
- Key Laboratory of Flexible Electronics and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| |
Collapse
|
20
|
Meng S, Zuo Y, Fu H, Lu W, Xu S, Li Y, Tian H. Nanoscrolls made from boron nitride nanotubes with helical fissure. MOLECULAR SIMULATION 2021. [DOI: 10.1080/08927022.2021.1872789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Shusheng Meng
- Department of Basic Courses, Zhengzhou University of Science and Technology, Zhengzhou, Henan, People’s Republic of China
| | - Yuhu Zuo
- School of Mechanical & Vehicle Engineering, Linyi University, Linyi, Shandong, People’s Republic of China
| | - Hongjin Fu
- School of Mechanical & Vehicle Engineering, Linyi University, Linyi, Shandong, People’s Republic of China
| | - Weitao Lu
- School of Physics and Electronic Engineering, Linyi University, Linyi, Shandong, China
| | - Shuqiong Xu
- School of Mechanical & Vehicle Engineering, Linyi University, Linyi, Shandong, People’s Republic of China
| | - Yunfang Li
- School of Mechanical & Vehicle Engineering, Linyi University, Linyi, Shandong, People’s Republic of China
| | - Hongyu Tian
- School of Physics and Electronic Engineering, Linyi University, Linyi, Shandong, China
| |
Collapse
|
21
|
Ghosh R, Lin HI, Chen YS, Singh M, Yen ZL, Chiu S, Lin HY, Bera KP, Liao YM, Hofmann M, Hsieh YP, Chen YF. QD/2D Hybrid Nanoscrolls: A New Class of Materials for High-Performance Polarized Photodetection and Ultralow Threshold Laser Action. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2003944. [PMID: 33079462 DOI: 10.1002/smll.202003944] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/26/2020] [Indexed: 06/11/2023]
Abstract
Nanoscrolls are a class of nanostructures where atomic layers of 2D materials are stacked consecutively in a coaxial manner to form a 1D spiral topography. Self-assembly of chemical vapor deposition grown 2D WS2 monolayer into quasi-1D van der Waals scroll structure instigates a plethora of unique physiochemical properties significantly different from its 2D counterparts. The physical properties of such nanoscrolls can be greatly manipulated upon hybridizing them with high-quantum-yield colloidal quantum dots, forming 0D/2D structures. The efficient dissociation of excitons at the heterojunctions of QD/2D hybridized nanoscrolls exhibits a 3000-fold increased photosensitivity compared to the pristine 2D-material-based nanoscroll. The synergistic effects of confined geometry and efficient QD scatterers produce a nanocavity with multiple feedback loops, resulting in coherent lasing action with an unprecedentedly low lasing threshold. Predominant localization of the excitons along the circumference of this helical scroll results in a 12-fold brighter emission for the parallel-polarized transition compared to the perpendicular one, as confirmed by finite-difference time-domain simulation. The versatility of hybridized nanoscrolls and their unique properties opens up a powerful route for not-yet-realized devices toward practical applications.
Collapse
Affiliation(s)
- Rapti Ghosh
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, 115, Taiwan
- Department of Physics, National Central University, ChungLi, 320, Taiwan
- Molecular Science and Technology Program, Taiwan International Graduate Program, Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, 115, Taiwan
- Department of Physics, National Taiwan University, Taipei, 106, Taiwan
| | - Hung-I Lin
- Department of Physics, National Taiwan University, Taipei, 106, Taiwan
- Graduate Institute of Applied Physics, National Taiwan University, Taipei, 106, Taiwan
| | - Yu-Siang Chen
- Institute of Opto-Mechatronics, National Chung Cheng University, Chiayi, 62102, Taiwan
| | - Mukesh Singh
- Department of Physics, National Taiwan University, Taipei, 106, Taiwan
| | - Zhi-Long Yen
- Department of Physics, National Taiwan University, Taipei, 106, Taiwan
| | - Shengkuei Chiu
- Department of Materials Science and Engineering, Feng Chia University, Taichung, 40724, Taiwan
| | - Hsia-Yu Lin
- Department of Physics, National Taiwan University, Taipei, 106, Taiwan
| | - Krishna P Bera
- Department of Physics, National Taiwan University, Taipei, 106, Taiwan
| | - Yu-Ming Liao
- Department of Physics, National Taiwan University, Taipei, 106, Taiwan
| | - Mario Hofmann
- Department of Physics, National Taiwan University, Taipei, 106, Taiwan
| | - Ya-Ping Hsieh
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, 115, Taiwan
- Molecular Science and Technology Program, Taiwan International Graduate Program, Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, 115, Taiwan
| | - Yang-Fang Chen
- Department of Physics, National Taiwan University, Taipei, 106, Taiwan
- Graduate Institute of Applied Physics, National Taiwan University, Taipei, 106, Taiwan
- Advanced Research Center for Green Materials Science and Technology, National Taiwan University, Taipei, 106, Taiwan
| |
Collapse
|
22
|
Hao Q, Liu J, Wang G, Chen J, Gan H, Zhu J, Ke Y, Chai Y, Lin J, Zhang W. Surface-Modified Ultrathin InSe Nanosheets with Enhanced Stability and Photoluminescence for High-Performance Optoelectronics. ACS NANO 2020; 14:11373-11382. [PMID: 32809802 DOI: 10.1021/acsnano.0c03556] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Indium selenide (InSe) has become a research hotspot because of its favorable carrier mobility and thickness-tunable band gap, showing great application potential in high-performance optoelectronic devices. The trend of miniaturization in optoelectronics has forced the feature sizes of the electronic components to shrink accordingly. Therefore, atomically thin InSe crystals may play an important role in future optoelectronics. Given the instability and ultralow photoluminescent (PL) emission of mechanically exfoliated ultrathin InSe, synthesis of highly stable mono- and few-layer InSe nanosheets with high PL efficiency has become crucial. Herein, ultrathin InSe nanosheets were prepared via thermal annealing of electrochemically intercalated products from bulk InSe. The size and yield of the as-prepared nanosheets were up to ∼160 μm and ∼70%, respectively, and ∼80% of the nanosheets were less than five layer. Impressively, the as-prepared nanosheets showed greatly enhanced stability and PL emission because of surface modification by carbon species. Efficient photoresponsivity of 2 A/W was achieved in the as-prepared nanosheet-based devices. These nanosheets were further assembled into large-area thin films with photoresponsivity of 16 A/W and an average Hall mobility of about 5 cm2 V-1 s-1. Finally, one-dimensional (1D) InSe nanoscrolls with a length up to 90 μm were constructed by solvent-assisted self-assembly of the exfoliated nanosheets.
Collapse
Affiliation(s)
- Qiaoyan Hao
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Shenzhen University, Shenzhen 518060, China
| | - Jidong Liu
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Shenzhen University, Shenzhen 518060, China
| | - Gang Wang
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jiewei Chen
- Department of Applied Physics, Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Haibo Gan
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Shenzhen University, Shenzhen 518060, China
| | - Jiaqi Zhu
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Shenzhen University, Shenzhen 518060, China
| | - Yuxuan Ke
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Shenzhen University, Shenzhen 518060, China
| | - Yang Chai
- Department of Applied Physics, Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Junhao Lin
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Wenjing Zhang
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology, Shenzhen University, Shenzhen 518060, China
| |
Collapse
|
23
|
Nalwa HS. A review of molybdenum disulfide (MoS 2) based photodetectors: from ultra-broadband, self-powered to flexible devices. RSC Adv 2020; 10:30529-30602. [PMID: 35516069 PMCID: PMC9056353 DOI: 10.1039/d0ra03183f] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 07/17/2020] [Indexed: 12/23/2022] Open
Abstract
Two-dimensional transition metal dichalcogenides (2D TMDs) have attracted much attention in the field of optoelectronics due to their tunable bandgaps, strong interaction with light and tremendous capability for developing diverse van der Waals heterostructures (vdWHs) with other materials. Molybdenum disulfide (MoS2) atomic layers which exhibit high carrier mobility and optical transparency are very suitable for developing ultra-broadband photodetectors to be used from surveillance and healthcare to optical communication. This review provides a brief introduction to TMD-based photodetectors, exclusively focused on MoS2-based photodetectors. The current research advances show that the photoresponse of atomic layered MoS2 can be significantly improved by boosting its charge carrier mobility and incident light absorption via forming MoS2 based plasmonic nanostructures, halide perovskites-MoS2 heterostructures, 2D-0D MoS2/quantum dots (QDs) and 2D-2D MoS2 hybrid vdWHs, chemical doping, and surface functionalization of MoS2 atomic layers. By utilizing these different integration strategies, MoS2 hybrid heterostructure-based photodetectors exhibited remarkably high photoresponsivity raging from mA W-1 up to 1010 A W-1, detectivity from 107 to 1015 Jones and a photoresponse time from seconds (s) to nanoseconds (10-9 s), varying by several orders of magnitude from deep-ultraviolet (DUV) to the long-wavelength infrared (LWIR) region. The flexible photodetectors developed from MoS2-based hybrid heterostructures with graphene, carbon nanotubes (CNTs), TMDs, and ZnO are also discussed. In addition, strain-induced and self-powered MoS2 based photodetectors have also been summarized. The factors affecting the figure of merit of a very wide range of MoS2-based photodetectors have been analyzed in terms of their photoresponsivity, detectivity, response speed, and quantum efficiency along with their measurement wavelengths and incident laser power densities. Conclusions and the future direction are also outlined on the development of MoS2 and other 2D TMD-based photodetectors.
Collapse
Affiliation(s)
- Hari Singh Nalwa
- Advanced Technology Research 26650 The Old Road Valencia California 91381 USA
| |
Collapse
|
24
|
Deng W, Chen X, Li Y, You C, Chu F, Li S, An B, Ma Y, Liao L, Zhang Y. Strain Effect Enhanced Ultrasensitive MoS 2 Nanoscroll Avalanche Photodetector. J Phys Chem Lett 2020; 11:4490-4497. [PMID: 32383880 DOI: 10.1021/acs.jpclett.0c00861] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Two-dimensional (2D) materials and their derived quasi one-dimensional structure provide incredible possibilities for the field of photoelectric detection due to their intrinsic optical and electrical properties. However, the photogenerated carriers in atomically thin media are poor due to the low optical absorption, which greatly limits their performance. Here, in the MoS2 nanoscroll photodetector, we meticulously investigated the avalanche multiplication effect. The results show that by employing the nanoscroll structure, the required threshold electrical field for triggering avalanche multiplication is significantly lower than that of MoS2 flake due to the modulation of the energy band and intervalley scattering through the strain effect. Consequently, avalanche multiplication could efficiently enhance the photoresponsivity to >104 A/W. Furthermore, enhanced avalanche multiplication could be generalized to other TMDCs through theoretical prediction. The results not only are significant for the understanding of the intrinsic nature of 2D materials but also reveal meaningful advances in high-performance and low-power consumption photodetection.
Collapse
Affiliation(s)
- Wenjie Deng
- College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials of Education Ministry of China, Beijing Key Laboratory of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - Xiaoqing Chen
- College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials of Education Ministry of China, Beijing Key Laboratory of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - Yufo Li
- College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials of Education Ministry of China, Beijing Key Laboratory of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - Congya You
- College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials of Education Ministry of China, Beijing Key Laboratory of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - Feihong Chu
- College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials of Education Ministry of China, Beijing Key Laboratory of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - Songyu Li
- College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials of Education Ministry of China, Beijing Key Laboratory of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - Boxing An
- College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials of Education Ministry of China, Beijing Key Laboratory of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - Yang Ma
- College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials of Education Ministry of China, Beijing Key Laboratory of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - Lei Liao
- School of Physics & Electronics, Hunan University, Changsha 410082, China
| | - Yongzhe Zhang
- College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials of Education Ministry of China, Beijing Key Laboratory of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| |
Collapse
|
25
|
Guo H, Wang L, You W, Yang L, Li X, Chen G, Wu Z, Qian X, Wang M, Che R. Engineering Phase Transformation of MoS 2/RGO by N-doping as an Excellent Microwave Absorber. ACS APPLIED MATERIALS & INTERFACES 2020; 12:16831-16840. [PMID: 32182030 DOI: 10.1021/acsami.0c01998] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
As a hot two-dimensional (2D) material, molybdenum disulfide has been attracting extensive attention for electromagnetic wave response applications because of its unique structure. However, the electronic conductivity of nanostructured MoS2 needs to be optimized urgently. Here, nitrogen-doped 1T@2H-MoS2/reduced graphene oxide (RGO) composites are effectively constructed by hydrothermal reaction and consecutive calcination under an NH3 atmosphere. The prepared composites possess great microwave absorption (MA) performance with an expected absorption bandwidth (4.00 GHz) at the Ku band and a maximum reflection loss value (-67.77 dB), which is much better than the performance of conventional 2H-MoS2 or 2H-MoS2/RGO. The prominent absorption property is ascribed to the (i) unique self-assemble morphology of rose-like MoS2 supported on 2D RGO; (ii) controllable crystalline phase switch between 2H and 1T; and (iii) brilliant energy attenuation caused by the intense multipolarization. Furthermore, the dominant MA mechanism is described as the local polarization motivated by the interaction between RGO and MoS2. Thus, our novel structure design provides a necessary reference to achieve optimized absorption performance based on 2D materials.
Collapse
Affiliation(s)
- Huiqiao Guo
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P. R. China
| | - Lei Wang
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P. R. China
| | - Wenbin You
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P. R. China
| | - Liting Yang
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P. R. China
| | - Xiao Li
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P. R. China
| | - Guanyu Chen
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P. R. China
| | - Zhengchen Wu
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P. R. China
| | - Xiang Qian
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P. R. China
| | - Min Wang
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P. R. China
| | - Renchao Che
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P. R. China
| |
Collapse
|
26
|
Liu J, Shi W, Wang X. Cluster–Nuclei Coassembled into Two-Dimensional Hybrid CuO-PMA Sub-1 nm Nanosheets. J Am Chem Soc 2019; 141:18754-18758. [DOI: 10.1021/jacs.9b08818] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Junli Liu
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Wenxiong Shi
- School of Materials Science and Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, People’s Republic of China
| | - Xun Wang
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China
| |
Collapse
|
27
|
Zhou X, Tian Z, Kim HJ, Wang Y, Xu B, Pan R, Chang YJ, Di Z, Zhou P, Mei Y. Rolling up MoSe 2 Nanomembranes as a Sensitive Tubular Photodetector. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1902528. [PMID: 31482646 DOI: 10.1002/smll.201902528] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 08/02/2019] [Indexed: 06/10/2023]
Abstract
Transition metal dichalcogenides, as a kind of 2D material, are suitable for near-infrared to visible photodetection owing to the bandgaps ranging from 1.0 to 2.0 eV. However, limited light absorption restricts photoresponsivity due to the ultrathin thickness of 2D materials. 3D tubular structures offer a solution to solve the problem because of the light trapping effect which can enhance optical absorption. In this work, thanks to mechanical flexibility of 2D materials, self-rolled-up technology is applied to build up a 3D tubular structure and a tubular photodetector is realized based on the rolled-up molybdenum diselenide microtube. The tubular device is shown to present one order higher photosensitivity compared with planar counterparts. Enhanced optical absorption arising from the multiple reflections inside the tube is the main reason for the increased photocurrent. This tubular device offers a new design for increasing the efficiency of transition metal dichalcogenide-based photodetection and could hold great potential in the field of 3D optoelectronics.
Collapse
Affiliation(s)
- Xuefei Zhou
- Department of Materials Science and State Key Laboratory of ASIC and system, Fudan University, Shanghai, 200433, P. R. China
| | - Ziao Tian
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Hyuk Jin Kim
- Department of Physics, University of Seoul, Seoul, 02504, Republic of Korea
| | - Yang Wang
- Department of Materials Science and State Key Laboratory of ASIC and system, Fudan University, Shanghai, 200433, P. R. China
| | - Borui Xu
- Department of Materials Science and State Key Laboratory of ASIC and system, Fudan University, Shanghai, 200433, P. R. China
| | - Ruobing Pan
- Department of Materials Science and State Key Laboratory of ASIC and system, Fudan University, Shanghai, 200433, P. R. China
| | - Young Jun Chang
- Department of Physics, University of Seoul, Seoul, 02504, Republic of Korea
| | - Zengfeng Di
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Peng Zhou
- State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai, 200433, P. R. China
| | - Yongfeng Mei
- Department of Materials Science and State Key Laboratory of ASIC and system, Fudan University, Shanghai, 200433, P. R. China
| |
Collapse
|
28
|
Deng W, You C, Chen X, Wang Y, Li Y, Feng B, Shi K, Chen Y, Sun L, Zhang Y. High-Performance Photodiode Based on Atomically Thin WSe 2 /MoS 2 Nanoscroll Integration. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1901544. [PMID: 31119889 DOI: 10.1002/smll.201901544] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 05/03/2019] [Indexed: 06/09/2023]
Abstract
Self-assembled structures of 2D materials with novel physical and chemical properties, such as the good electrical and optoelectrical performance in nanoscrolls, have attracted a lot of attention. However, high photoresponse speed as well as high responsivity cannot be achieved simultaneously in the nanoscrolls. Here, a photodiode consisting of single MoS2 nanoscrolls and a p-type WSe2 is demonstrated and shows excellent photovoltaic characteristics with a large open-circuit voltage of 0.18 V and high current intensity. Benefiting from the heterostructure, the dark current is suppressed resulting in an increased ratio of photocurrent to dark current (two orders of magnitude higher than the single MoS2 nanoscroll device). Furthermore, it yields high responsivity of 0.3 A W-1 (corresponding high external quantum efficiency of ≈75%) and fast response time of 5 ms, simultaneously. The response speed is increased by three orders of magnitude over the single MoS2 nanoscroll device. In addition, broadband photoresponse up to near-infrared could be achieved. This atomically thin WSe2 /MoS2 nanoscroll integration not only overcomes the disadvantage of MoS2 nanoscrolls, but also demonstrates a single nanoscroll-based heterostructure with high performance, promising its potential in the future optoelectronic applications.
Collapse
Affiliation(s)
- Wenjie Deng
- College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
- The Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing, 100124, China
| | - Congya You
- College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
- The Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing, 100124, China
| | - Xiaoqing Chen
- College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
- The Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing, 100124, China
| | - Yi Wang
- College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
- The Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing, 100124, China
| | - Yufo Li
- College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
- The Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing, 100124, China
| | - Beibei Feng
- College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
- The Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing, 100124, China
| | - Ke Shi
- College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
- The Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing, 100124, China
| | - Yongfeng Chen
- College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
- The Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing, 100124, China
| | - Ling Sun
- Beijing Guyue New Materials Research Institute, Beijing University of Technology, Beijing, 100124, China
| | - Yongzhe Zhang
- College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China
- The Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing, 100124, China
| |
Collapse
|
29
|
Wang Y, Jiang C, Chen Q, Zhou Q, Wang H, Wan J, Ma L, Wang J. Highly Promoted Carrier Mobility and Intrinsic Stability by Rolling Up Monolayer Black Phosphorus into Nanoscrolls. J Phys Chem Lett 2018; 9:6847-6852. [PMID: 30449107 DOI: 10.1021/acs.jpclett.8b02913] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Rolling up two-dimensional (2D) materials into nanoscrolls could not only retain the excellent properties of their 2D hosts but also display intriguing physical and chemical properties that arise from their 1D tubular structures. Here, we report a new class of black phosphorus nanoscrolls (bPNSs), which are stable at room-temperature and energetically more favorable than 2D bP. Most strikingly, these bPNSs hold tunable direct band gaps and extremely high mobilities (e.g., the mobility of the double-layer bPNS is about 20-fold higher than that of 2D bP monolayer). Their unique self-encapsulation structure and layer-dependent conduction band minimum can largely prevent the entrance of O2 and the production of O2- and thereby suppress the possible environmental degradation as well. The enhanced intrinsic stability and promoted electronic properties render bPNSs great promise in many advanced electronics or optoelectronics applications.
Collapse
Affiliation(s)
- Yitian Wang
- School of Physics , Southeast University , Nanjing 211189 , China
| | - Chenghuan Jiang
- School of Physics , Nanjing University , Nanjing 210093 , China
| | - Qian Chen
- School of Physics , Southeast University , Nanjing 211189 , China
| | - Qionghua Zhou
- School of Physics , Southeast University , Nanjing 211189 , China
| | - Haowei Wang
- Mechanical Engineering Department , California State University Fullerton , Fullerton , California 92831 , United States
| | - Jianguo Wan
- School of Physics , Nanjing University , Nanjing 210093 , China
| | - Liang Ma
- School of Physics , Southeast University , Nanjing 211189 , China
| | - Jinlan Wang
- School of Physics , Southeast University , Nanjing 211189 , China
| |
Collapse
|